body {
    font-family: Arial, sans-serif;
    background-color: #121212;
    color: #e0e0e0;
    margin: 0;
    padding: 0;
}

.header {
    padding: 10px;
    text-align: center;
    font-size: 20px;
    font-weight: bold;
    color: #e0e0e0;
}

#navbar {
    background-color: #1e1e1e;
}

#navbar a[href="/skills"] {
    font-weight: bold;
    /* 加粗字体 */
}

#navbar a:hover {
    background-color: #211f1f;
}

#navbar img {
    width: 35px;
    /* 增加图片的宽度 */
    height: 35px;
    /* 增加图片的高度 */
    margin-right: 0;
    /* 移除图片与文字之间的间距 */
}

.button-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 0px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.func_button:first-child {
    border-top: 1px solid #333;
}

.func_button {
    width: 100vw;
    padding: 30px;
    margin: 0 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #1e1e1e;
    color: #e0e0e0;
    font-size: 1.2em;
    border: none;
    border-bottom: 1px solid #333;
    cursor: pointer;
}

.func_button:hover {
    background-color: #333;
}